CN1953008A - Active matrix display device and related data adjustment module and driving method - Google Patents

Abstract

The invention provides an active matrix display device and a related data adjusting module and a driving method thereof, wherein the driving method comprises that each image frame is divided into a plurality of displayed frame parts, and each displayed frame part is followed by a black frame part. The temporal separation between the displayed frame portion and the black frame portion is less than one frame time. This means that the displayed image data on one pixel in each of the above-mentioned portions is displayed for only a certain period of time in one frame. During the rest of the same frame, data is removed to reduce the brightness of the pixel.

Description

Active matrix display device and related data adjustment module and driving method

technical field

The present invention relates to an active matrix display device, in particular to a method for driving the active matrix display device.

Background technique

An active matrix display device, such as an active matrix liquid crystal display (AMLCD) panel, has a two-dimensional pixel matrix including a plurality of pixel columns. As shown in FIG. 1 , each pixel column has a plurality of pixels arranged in the x direction. These pixels are arranged in a straight line in the y direction, so that they can be sequentially driven by scanning signals provided by one or more scanning lines in the scanning circuit. In FIG. 1 , the display panel 10 has a display area 20 including pixels 22 . Each pixel column is driven by a gate line Gn provided by a scanning circuit or gate line driver 40 . The data signals provided to the pixel columns are sent to a plurality of data lines Dn via a source driver or a data chip 30 .

In a liquid crystal display panel (hereinafter referred to as "LCD"), because the response time of the liquid crystal is not fast enough, sometimes a motion blur effect will be generated in a series of animations. Therefore, there are many methods to try to reduce or eliminate this phenomenon. One of the techniques used to reduce the afterimage effect of moving images is to shorten the response time of liquid crystals by overdriving them. Another technique is the darker frame insertion technique, in which blanking data in one or more frames is provided to the display panel after an image frame is displayed. Some existing methods for solving the afterimage effect of moving images may produce non-ideal phenomena such as ghost images and double-edge images.

Therefore, there is a need to provide a method and system for solving the problem of the image sticking effect on the active matrix display device.

Contents of the invention

In view of this, one of the objectives of the present invention is to provide a new driving method for solving the above-mentioned dynamic image sticking effect on the active matrix display device.

Based on the above purpose, the present invention provides a new driving method, wherein each image frame is divided into a plurality of displayed frame parts. Each displayed frame portion is followed by a black frame portion. The time separation between the displayed frame portion and the black frame portion is less than one frame time. This means that in one frame, the displayed image data on one pixel in each of the above-mentioned parts will only be displayed for a period of time. During the remainder of the same frame, data is removed to reduce the brightness of the pixels.

In a display device in which the above-mentioned pixels are arranged in a plurality of pixel rows and these pixel rows are repeatedly driven to form a display image in a plurality of frame times, the plurality of frame times include a first set of frame times and a The second set of frame times to follow. If the total brightness of the pixels in the first period is smaller than the total brightness of the pixels in the second period, the image data provided to the first set of frame times may be adjusted to increase the total brightness of the pixels in the first set of frame times.

Additionally, at least the first period of the first set of frame times may be extended to increase the total brightness of the pixels within the first set of frame times.

Alternatively, the charging time of the first cycle during the first set of frame times may be adjusted to increase the overall brightness of the pixels during the first set of frame times.

In another embodiment, wherein the luminance in the first period has a maximum luminance, and the luminance in the second period has a minimum luminance, and the maximum value of the pixel in the first group of frame times is smaller than that in the second group The image data provided to the pixels during the first set of frame times is adjusted to increase the maximum brightness of the pixels during the first set of frame times.

In addition, the image data provided to the pixels may be adjusted during the first set of frame times to reduce the minimum brightness of the pixels during the first set of frame times.

Furthermore, the charging time of the first cycle during the first set of frame times can be adjusted to increase the maximum brightness of the pixels during the first set of frame times.

The present invention also provides an active matrix display device, which has a plurality of data lines and a plurality of pixels, wherein the pixels are functionally connected to the data lines to receive an image data for use in the Brightness is generated on the pixels, the active matrix display device includes: a data source, used to provide the image data; and a data adjustment module, used to adjust the image data, so that the image data in one frame time is provided in a first period of the first period, and at least part of the provided data is removed from the pixel after the first period, so as to reduce the The brightness of the pixel mentioned above, wherein the sum of the first period and the second period is less than or substantially equal to one frame time.

The present invention further provides a data adjustment module suitable for an active matrix display device having a plurality of data lines and a plurality of pixels, wherein the pixels are functionally connected to the data lines to receive an image data , used to generate luminance on the pixel, wherein the pixel is arranged in a plurality of pixel columns to form a display image in a plurality of frame times, and the data adjustment module includes: a timing generator for to compare the image data in a current frame with the input data of one or more previous frames, and provide a signal according to the comparison result; and a timing controller, to control the image data according to the signal, so that the Image data is provided to the pixels during a first period of one frame time, and at least part of the image data is shifted from the pixels during a second period of one frame time following the first period divide to reduce the brightness of the pixel during the second period, wherein the sum of the first period and the second period is less than or substantially equal to one frame time.

Description of drawings

FIG. 1 is a schematic diagram of a display panel with a two-dimensional pixel matrix.

FIG. 2 is a block diagram showing a driving arrangement in a display panel according to an embodiment of the present invention.

FIG. 3 is a timing diagram showing the division of signal lines in a frame into a plurality of displayed frame portions and their associated black frame portions.

FIG. 4 is a timing diagram showing several signals related to pixel driving on signal lines and charging and discharging of pixels in one frame.

FIG. 5 is a timing diagram showing several signals between two lines.

FIG. 6 is a schematic diagram showing the pulse and discharge of pixels on a signal line to increase the brightness for displaying a frame portion and decrease the brightness for inserting a dark frame portion.

FIG. 7 is a schematic diagram showing the shape of a luminance curve of a conventional luminance change.

Fig. 8a is a schematic diagram showing an embodiment according to the present invention.

Fig. 8b is a schematic diagram showing another embodiment according to the present invention.

Fig. 8c is a schematic diagram showing another embodiment according to the present invention.

Fig. 8d is a schematic diagram showing yet another embodiment according to the present invention.

FIG. 9 is a block diagram showing a timing control unit for implementing a driving method according to an embodiment of the present invention.

Figure number:

x, y～direction; 10～display panel;

20～display area; 22～pixels;

30 ~ data chip; 40, 40 ₁ , 40 ₂ , 40 ₃ ~ grid driver;

G1-G768, Gn～gate line; Dn～data line;

YOEl, YOE2, YOE3 control signals; YOED, YOEB time period;

YDIO, VT-YDIO～signal; DE～enable signal;

XDIO～input pulse sequence; YCLK～clock signal;

XSTB～output pulse sequence; G1-G(k+n)～scan signal line;

BDO～source drive signal; XPOL～polarity signal;

Vcom ~ signal; L_Stable_L, L_Stable_H ~ brightness;

100～image data adjustment circuit; 110～frame memory controller;

120～pulse data feedback block; 130～pulse data generator block;

140～can eliminate shadow data block; 150～pulse timing generator block;

160～Multi-tasker; 170～Gamma correction table;

180～optical rising/falling timing controller block; 190～charging time controller block.

Detailed ways

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings. The driving method according to the present invention divides each image frame into one or more displayed frame parts, and each displayed frame part is followed by a black frame part. The time separation between the displayed frame portion and the black frame portion is less than one frame time. This means that in a frame, data for a displayed image on a pixel in each displayed time portion is only provided to the pixel for a fraction of a frame time. During the remainder of the same frame, data is removed to reduce the brightness of the pixels.

In an embodiment according to the present invention, each image frame is divided into 3 displayed frame parts, and each displayed frame part is followed by a black frame part. The time separation between a displayed frame portion and its corresponding black frame portion is approximately equal to half of a frame time. However, this time separation can be adjusted. FIG. 2 shows the driving arrangement of the display panel according to the embodiment of the present invention. In this embodiment, for example, it is assumed that the resolution of the display panel is 1366×768. In order to provide scanning signals to 768 gate lines, three gate line drivers 40 ₁ , 40 ₂ and 40 ₃ are respectively used to drive a group of gate lines G1 to G256, a group of gate lines G257 to G512 and a group of gate lines G257 to G512. grid lines G513 to G768. The gate line drivers 40 ₁ , 40 ₂ and 40 ₃ are arranged in series and controlled by control signals YOE1 , YOE2 and YOE3 respectively.

In Figure 2, YDIO is used to provide a signal to start scanning a frame. XDIO is used to provide a signal for synchronizing the scanning of each gate line. YCLK represents a clock signal. XSTB, XPOL and BDO are control signals associated with these gate lines. For the description of these signals, please refer to the descriptions of FIG. 3 to FIG. 5 .

In FIG. 3, Vactive represents an active period within one frame time. During one frame time, YDIO provides a signal to the gate line G1 to start a frame of scanning. After the gate line is turned on to G383, YDIO provides a signal to the gate line G1 again. This second YDIO signal is denoted as VT-YDIO signal (see FIG. 6). These raster line signals determine the frame scan rate. In one frame time, the time period of three displayed frame parts is represented by YOED in the control signals YOE1, YOE2 and YOE3. The three black frame portions follow the three displayed frame portions respectively and the time period is represented by YOEB in the control signals YOE1 , YOE2 and YOE3 . It should be noted that each YOED includes a sequence of pulses to activate charging of pixels in a corresponding set of gate lines, and each YOEB includes a sequence of pulses to activate discharge of pixels in a corresponding set of gate lines. In the same YOEN (N=1 to 3) control signal, the pulse sequence of YOEB is behind the pulse sequence of YOED by the channel number of at least one Gate Driver, for example, the time of 256 gate lines. Figure 4 shows a schematic diagram of the time relationship of each pulse in YOED and the corresponding pulse in YOEB.

Figure 4 shows the timing diagram of the signals on the individual signal lines. In FIG. 4, DE denotes each data enable signal of 768 gate lines. XDIO represents the source input pulse used to drive each gate line related to the scan circuit in a scan circuit. G1 , G2 . . . G(k+n) represent scanning signal lines in which gate pulses are continuously provided and synchronized with YOED pulses. The YOED pulse is triggered by the y clock signal YCLK. It is worth noting that the pulse sequence on YOEB shown in Fig. 3 is about k lines behind the pulse sequence on YOED. For example, if the value of k is 383 as shown in Figure 3, the first pulse of the pulse train on YOEB will start after the time period of about 383 lines of the first pulse train on YOED . Therefore, the second grid pulse B of any grid line will lag behind the grid pulse D of the same grid line.

In FIG. 4, XSTB represents an output pulse sequence from the scanning circuit, which is related to the source input pulse sequence XDIO. The source input pulse sequence XDIO is synchronized with the source drive signal BDO, which is a special signal provided to the source driver. If BDO is high when XSTB has a rising edge, then the source driver will output a preset low brightness value corresponding to the falling edge of XSTB. If BDO is low when XSTB has a rising edge, then the source driver will output a normal image data corresponding to the falling edge of XSTB. In addition, after the rising edge of the YDIO signal that indicates the start of a frame scan, each odd-numbered XSTB pulse marks the start of charging time for pixels on a specific grid line, and each subsequent even-numbered XSTB pulse marks the start of charging time for the pixels on the same grid line. The discharge time of the pixels on the line.

FIG. 3 shows a timing diagram of various signal pulses between two frames, and FIG. 5 shows a timing diagram of various signal pulses between two gate lines. In Figure 5, XPOL represents a polarity signal displayed by a swing type. If XPOL is high when XSTB has a rising edge, the Vcom signal (not shown) supplied to the first pixel corresponding to the falling edge of XSTB is positive. As mentioned above, each odd-numbered XSTB pulse marks the start of the charging time of pixels on a particular signal line, and each subsequent even-numbered XSTB pulse marks the beginning of the discharging time of pixels on the same signal line. The timing of charging (rising) and discharging (falling) is related to the brightness increase or decrease of a pixel. Therefore, the area under a charging curve and a discharging curve is related to the total brightness produced by a pixel within a frame time. FIG. 6 is a schematic diagram showing charging and discharging of a pixel.

It can be seen from FIG. 6 that the first YDIO signal starts charging the pixels on the gate line G1, and the second YDIO (VT-YDIO) signal starts discharging the pixels on the same gate line G1. The VT-YDIO signal starts the time period of its corresponding black frame portion. At this time, YDIO and VT-YDIO are set to adjust the time separation between a displayed frame portion and its corresponding black frame portion. In FIG. 6 , Td is an adjustable time period required to charge a pixel with an image data (rising data), and Tb is a time period required to discharge a pixel with a black data (falling data). The sum of Td and Tb is roughly equal to a horizontal line time (Td+Tb=1H time), wherein the horizontal line time is defined as an active time of a DE signal (see FIGS. 4 and 5 ).

It is worth noting that the time interval between an even-numbered YDIO pulse (discharging signal) and the previous odd-numbered YDIO pulse (charging signal) is adjustable to adjust a pixel on a signal line within a frame time. Increase or decrease in brightness. When the brightness of a pixel changes from low to high, for example, the charge-discharge curve of the first frame after the brightness change (see FIG. 6 ) is usually different from the charge-discharge curve of subsequent frames. Therefore, the total brightness of the first frame is different (and usually smaller) than that of each subsequent frame, as shown in FIG. 7 . As shown in FIG. 7 , the total luminance of frames A, B, C, and D are denoted as area A, area B, area C, and area D, respectively. It can be seen from FIG. 7 that area A is smaller than area B, and area B is smaller than area C.

After a few frames, the brightness will stabilize. As shown in FIG. 7, area C is substantially equal to area D. As shown in FIG. When the luminance becomes stable, its peak value is approximately equal to L_Stable_H, and its minimum luminance is approximately equal to L_Stable_L. For example, the brightness of the first 2 frames in FIG. 7 corresponds to the image data gray scale 16, and the brightness of the following 4 frames corresponds to the image data gray scale 128. However, after transitioning from a low grayscale value to a high grayscale value, the luminance cannot reach a steady state immediately. Therefore, a so-called motion image sticking effect may occur. In FIG. 7 , L_Stable_Ha and L_Stable_La represent the highest and lowest brightness values of grayscale 16, and L_Stable_Hb and L_Stable_Lb represent the highest and lowest brightness values of grayscale 128.

The present invention uses an image data adjustment circuit (see FIG. 9 ) to adjust the brightness of the first few frames after a brightness change, so as to reduce the total brightness difference between different frames. Therefore, the afterimage effect of moving images can be reduced. Generally speaking, the adjustment method is to increase the image data of the above-mentioned first few frames, so that the brightness can reach its stable state immediately.

In the first embodiment according to the present invention, the image data adjustment circuit increases the image data of the first several frames after a brightness change, so that after the brightness reaches its stable state, the pixel value of each of the above-mentioned first several frames The total brightness is approximately equal to the total brightness of the same pixel in the next frame, as shown in Figure 8a.

In Figures 8a and 8d, the total luminance is expressed as the area under the luminance curve to maintain the following relationship:

Area A ≥ Area B ≥ Area C ≥ Area D,

Area D represents the steady-state total brightness without image data adjustment.

In the second embodiment according to the present invention, the image data adjustment circuit increases the brightness of the image of the first few frames after a brightness change, so that after the brightness reaches its stable state, one pixel in each of the above-mentioned first few frames The peak brightness of is roughly equivalent to the peak brightness of the same pixel in the next frame. The number of frames required for image data adjustment to increase brightness depends on the response time of the liquid crystal and the charge storage in the pixel. Generally speaking, a brightness increase of 4 or 5 frames is sufficient. However, more or fewer frames may be required. As shown in Fig. 8b, the peak luminance in frames A, B and C is equal to the peak luminance in frame D. The peak luminance in frame D represents the peak luminance at steady state without image data adjustment, or L_Stable_H.

In the third embodiment according to the present invention, the image data adjustment circuit increases the brightness of the images of the first several frames after a brightness change, so that after the brightness reaches its stable state, one pixel in each of the above-mentioned first several frames The minimum brightness point of is roughly equivalent to the minimum brightness point of the same pixel in the steady state, L_Stable_L, as shown in Figure 8c.

In the fourth embodiment according to the present invention, the image data adjustment circuit increases the brightness of the images of the first several frames after a brightness change, so that after the brightness reaches its steady state, one pixel in each of the above-mentioned first several frames The peak brightness of L_Stable_H is higher than that of L_Stable_H, as shown in Fig. 8d.

Therefore, according to the above embodiments of the present invention, an image data adjustment circuit is used to adjust the data sent to a pixel after a brightness change, so as to shorten the time required for the brightness change to reach its stable state. Generally speaking, after the brightness is changed, the image data of the first few frames will increase. In addition, the total brightness in one frame can be adjusted by changing the time separation between the first YDIO signal and the second YDIO signal (VT-YDIO) in one frame time. The total brightness in one frame can also be adjusted by changing the charging time Td and discharging time Tb.

The method for reducing the residual image of a moving image of the present invention, for example, can be realized by using an image data adjustment circuit 100 as shown in FIG. 9 . After the input data is received by a video card and processed into a format suitable for the display panel, the processed input data will be stored in a frame memory of the frame memory controller 110 . The frame memory controller 110 has two interconnected parts: the frame memory and a timing controller to convert the processed input data into a suitable format where it can be stored. In addition, the data stored in the frame memory can also be converted into an appropriate format for use by the timing controller. When the frame memory controller retrieves the stored input data, the stored input data will be sent to an impulse timing (Impulse timing) generator block 150, an impulse data generator block 130 and an impulse data feedback (feedback) block 120. The pulse data feedback block 120 is a feedback module, which is used to process the data in several consecutive frames, and transmit the processed data to a summing device, and the summing device will input data and feedback The processed data is added or subtracted, and the summed result is stored in the frame memory.

The pulse timing generator block 150 is used to compare the processed input data in the current frame with the previous one or several previous frames, and generate an indication signal according to the comparison result. The indication signal is then sent to the pulse data generator block 130 , an optical rising/falling (Rising/Failing) timing controller block 180 and a charging time controller block 190 . Using the indication signal, the blocks 130 , 140 , 180 and 190 can determine how to reduce the afterimage according to the function of each block. In particular, the pulse data generator block 130 is used to provide output image data to the pixels. For example, the pulse data generator block 130 can be used to increase the image data of the first few frames after a brightness change. The optical up/down timing controller block 180 is used to provide the YDIO signal. The optical up/down timing controller block 180 can be used to shorten or extend the time separation between the YDIO signal and the VT-YDIO signal in one frame time of the first few frames after a brightness change. The charging time controller block 190 is used to generate XSTB, YOED and XPOL control signals for controlling the liquid crystal charging time. For example, the controller block 190 can be used to adjust the width of the XSTB pulse to control the charging and discharging time of the liquid crystal.

In addition, in addition to adjusting the brightness of the first few frames after a brightness change, a data block 140 that can eliminate shadowing is also used to generate black or grayscale interpolation data that can reduce ghosting. When interpolating the provided black or grayscale data, a multiplexer 160 is used to insert the interpolation data in desired frames according to the indication signal from the pulse timing generator 150 .

Furthermore, a gamma correction table (Gamma correction table) 170 is used to select the gamma voltage, so that the image data provided to the liquid crystal display is a pulse data format, so that the liquid crystal display looks like a display with correct grayscale transparency and color Impulse-like data display of temperature. In a pulse-like data display, a pixel is lit only for a fraction of a frame time.

In short, when the input data is received by a video card and processed into a format suitable for the display panel, the processed input data will be stored in a frame memory of the frame memory controller. When the frame memory controller retrieves the stored input data, the stored input data will be sent to a pulse timing generator block 150 so that the pulse timing generator block 150 can compare the current frame with the previous or previous Input data in several frames. The data comparison results are indexed and sent to different controller blocks, so that the optical up/down timing controller block can generate the YDIO signal and the charging time controller block can generate the XSTB signal and the YOED control signal. These generated signals can be adjusted to achieve motion image sticking reduction. Additionally, black or grayscale data interpolation can be used to reduce motion image sticking, and a gamma correction table can be used to correct pulsed display data with correct gamma output.

To sum up, the present invention provides a driving method and device for driving an active matrix display device with a plurality of pixels, wherein image data is provided to these pixels to generate a first period of pixels in one frame time brightness, and in a subsequent second period, at least part of the image data is removed to reduce the brightness of the pixel, and the sum of the first period and the second period is less than or substantially equal to one frame time.

In particular, the above-mentioned pixels are arranged in a plurality of pixel rows, and by repeatedly driving these pixel rows to form a display image in a plurality of frame times, wherein the plurality of frame times include a first set of frame times and a consecutive second group of frame times Two sets of frame times. If the total brightness of the pixels in the first period is smaller than the total brightness of the pixels in the second period, the image data provided to the first set of frame times may be adjusted to increase the total brightness of the pixels in the first set of frame times.

Additionally, at least the first period of the first set of frame times is extended to increase the overall brightness of the pixels within the first set of frame times.

On the other hand, the charging time of the first cycle in the first set of frame times is adjusted to increase the total brightness of the pixels in the first set of frame times.

In another embodiment, wherein the luminance in the first period has a maximum luminance, and the luminance in the second period has a minimum luminance, and the maximum value of the pixel in the first group of frame times is smaller than that in the second group The image data provided to the pixels during the first set of frame times is adjusted to increase the maximum brightness of the pixels during the first set of frame times.

In addition, the image data provided to the pixels may be adjusted during the first set of frame times to reduce the minimum brightness of the pixels during the first set of frame times.

Furthermore, the charging time of the first cycle in the first set of frame times is adjusted to increase the maximum brightness of the pixels in the first set of frame times.

Therefore, although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (23)

1. display-apparatus driving method, in order to the active matrix display device that driving has a plurality of pixels, this display-apparatus driving method comprises the following steps:

Provide image data to described pixel,, on described pixel, produce brightness with according to the data that in a period 1 of a frame time, provide; And

After the described period 1, by the described data that provide that remove in the described pixel to small part, reducing the brightness in the second round that described pixel follows after this period 1,

The summation of wherein said period 1 and described second round less than or roughly be equal to described frame time.

2. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises the second framing time that the one first framing time and one continues, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness in the described pixel of this first framing time is less than the total brightness in the described pixel of this second framing time, and described method also comprises:

In time, adjust the image data that provides to described pixel, at described first framing to be increased in the total brightness of the pixel described in this first framing time.

3. display-apparatus driving method as claimed in claim 2, wherein image data is adjusted, and makes total brightness in the described pixel of the described first framing time be equal to the total brightness in the described pixel of the described second framing time haply.

4. display-apparatus driving method as claimed in claim 2, wherein image data is adjusted, and makes to be higher than total brightness in the described pixel of the described second framing time in the total brightness to the described pixel of described first framing in the time of small part.

5. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in the described period 1 has a high-high brightness, and the brightness in described second round has a minimum brightness, and the maximal value of the described pixel in this first framing time is less than the brightness of the described pixel in this second framing time, and described method also comprises:

In time, adjust the image data that provides to described pixel, at described first framing to be increased in the described high-high brightness of the pixel described in the described first framing time.

6. display-apparatus driving method as claimed in claim 5, wherein image data is adjusted, and makes described high-high brightness in the described pixel of described first framing in the time be equal to the described high-high brightness in the described pixel of the described second framing time haply.

7. display-apparatus driving method as claimed in claim 5, wherein image data is adjusted, and makes to be higher than described high-high brightness in the described pixel of described second framing in the time in the described high-high brightness to the described pixel of described first framing in the time of small part.

8. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in the described period 1 has a high-high brightness, and the brightness in described second round has a minimum brightness, and the maximal value of the described pixel in this first framing time is less than the brightness of the described pixel in this second framing time, and described method also comprises:

In time, adjust the image data that provides to described pixel at described first framing, to reduce described minimum brightness in the pixel described in the described first framing time.

9. display-apparatus driving method as claimed in claim 8, wherein image data is adjusted, and makes described minimum brightness in the described pixel of described first framing in the time be equal to the described minimum brightness in the described pixel of the described second framing time haply.

10. display-apparatus driving method as claimed in claim 8, wherein image data is adjusted, make to the described minimum brightness of the described pixel of described first framing in the time of small part less than described minimum brightness in the described pixel of described second framing in the time.

11. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness of the described pixel in this first framing time is less than the total brightness of the described pixel in this second framing time, and described method also comprises:

Adjust at least in the described described period 1 of first framing in the time, to be increased in the described total brightness of the pixel described in the described first framing time.

12. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at the brightness of the pixel described in a plurality of pixel columns and described period 1 and can be adjusted by a duration of charging, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness of the described pixel in this first framing time is less than the total brightness of the described pixel in this second framing time, and described method also comprises:

Be adjusted at the described duration of charging of the described first described period 1 of framing in the time, to be increased in the total brightness of the pixel described in the described first framing time.

13. display-apparatus driving method as claimed in claim 1, wherein said pixel is arranged at the brightness of the pixel described in a plurality of pixel columns and described period 1 and can be adjusted by a duration of charging, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in this period 1 has a high-high brightness, and the brightness in this second round has a minimum brightness, and the maximal value of the described pixel in this first framing time is less than the brightness of the described pixel in this second framing time, and described method also comprises:

Be adjusted at the described duration of charging of the described first described period 1 of framing in the time, to be increased in the described high-high brightness of the pixel described in this first framing time.

14. active matrix display device, it has plurality of data line and a plurality of pixel, wherein said pixel functionally is connected to described data line to receive an image data, and in order to produce brightness on described pixel, this active matrix display device comprises:

One Data Source is in order to provide described image data; And

One data adjusting module, in order to adjust described image data, make this image data in a period 1 of a frame time, be provided, and to the described data that provide of small part after this period 1 by removing in the described pixel, with the continue brightness of the pixel described in the second round after the period 1 of minimizing, wherein should the period 1 and summation that should second round less than or equal a frame time haply.

15. active matrix display device as claimed in claim 14, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises the second framing time that the one first framing time and one continues, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness of the described pixel in this first framing time is less than the total brightness of the described pixel in this second framing time, wherein said data adjusting module is used for further adjusting the image data that provides to described pixel, to be increased in this total brightness of the pixel described in this first framing time.

16. active matrix display device as claimed in claim 14, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in the described period 1 has a high-high brightness, and the brightness in described second round has a minimum brightness, and the maximal value of the described pixel in this first framing time is less than the brightness of the described pixel in this second framing time, wherein said data adjusting module is to be used for further adjusting the image data that provides to described pixel, to be increased in the high-high brightness of the pixel described in this first framing time.

17. active matrix display device as claimed in claim 14, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in the described period 1 has a high-high brightness, and the brightness in described second round has a minimum brightness, and the maximal value of the described pixel in this first framing time is less than the brightness of the described pixel in this second framing time, wherein said data adjusting module is to be used for further adjusting the image data that provides to described pixel, to reduce the minimum brightness in the pixel described in this first framing time.

18. active matrix display device as claimed in claim 14, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness of the described pixel in this first framing time is less than the total brightness of the described pixel in this second framing time, wherein said data adjusting module is to be used for further adjusting this period 1 in this first framing time at least, to be increased in the total brightness of the pixel described in this first framing time.

19. active matrix display device as claimed in claim 14, wherein said pixel is arranged at the brightness of the pixel described in a plurality of pixel columns and described period 1 and can be adjusted by a duration of charging, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and the total brightness of the described pixel in this first framing time is less than the total brightness of the described pixel in this second framing time, wherein said data adjusting module is to be used for further being adjusted at duration of charging of described first period 1 of framing in the time, to be increased in the total brightness of the pixel described in this first framing time.

20. active matrix display device as claimed in claim 14, wherein said pixel is arranged at the brightness of the pixel described in a plurality of pixel columns and described period 1 and can be adjusted by a duration of charging, and by repeatedly driving described pixel column in a plurality of frame times, to form a show image, described frame time comprises that the one first framing time and one continues second framing time of this first framing time, and wherein the brightness in the described period 1 has a high-high brightness, and the brightness in described second round has a minimum brightness, and in the maximal value of the described pixel of described first framing in the time less than brightness in the described pixel of described second framing in the time, wherein said data adjusting module is to be used for further adjusting the duration of charging that is adjusted at the period 1 in this first framing time, to be increased in the high-high brightness of the pixel described in this first framing time.

21. active matrix display device as claimed in claim 14 comprises a liquid crystal indicator.

22. data adjusting module, be applicable to a active matrix display device with plurality of data line and a plurality of pixels, wherein said pixel functionally is connected to described data line to receive an image data, in order on described pixel, to produce brightness, wherein said pixel is arranged at a plurality of pixel columns, in order to form show image in a plurality of frame times, described data adjusting module comprises:

One sequential generator in the input data of image data and one or more previous frame of a present frame, and provides a signal according to comparative result in order to relatively; And

Time schedule controller, in order to the described image data of the described signal controlling of foundation, make this image data in a period 1 of a frame time, provide to described pixel, and to this image data of small part is to remove in by described pixel in a second round of the frame time of this period 1 of continuing, to reduce brightness in the pixel described in this second round, wherein this period 1 and summation that should second round less than or be equal to a frame time haply.

23. data adjusting module as claimed in claim 22, wherein said pixel is arranged at a plurality of pixel columns, and by repeatedly driving described pixel column in a plurality of frame times, to form described show image, described frame time comprises the second framing time that the one first framing time and one continues, and wherein a summation of brightness in the described period 1 and the brightness in described second round produces a total brightness, and in the described total brightness of the described pixel of described first framing in the time less than described total brightness in the described pixel of described second framing in the time, wherein said data adjusting module is to be used for further adjusting the image data that provides to described pixel, to be increased in the total brightness of the pixel described in this first framing time.

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